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diy solar

Unboxing of Deye 16K Hybrid Inverter

robby said:
Still Waiting to see where the L2 Connection is ?
Click to expand...
I think in one of his posts he points out that N becomes L2 when you switch to split phase. The question is where is the neutral now, but going back and looking at SolArk 15k it seems there is a separate neutral Bus bar right below the ground bus bar, can't seem to find that in any of his pictures although it might just be the angles he has taken those pictures at.
 
misterbubbacat said:
View attachment 124179
LOAD N(L2) to Ground 120V
View attachment 124180
LOAD L(L1) to Ground 120V
View attachment 124181
LOAD 240V from L1(L) to L2(N).


Amazing !!!!!
Click to expand...

@misterbubbacat Look like you will have to add a neutral bar. See Solar-ark version, the added a simple one with standoffs just below the ground bar, seems easy enough.


SOL-ARK15KHYBRIDSOLARBATTERYSYSTEM.3_1200x.png
 
That it is not Split Face, that is called biphase. Those two 120 volts legs are (correction 90 degrees and not 180) apart so between the two you have 240 VAC.
 
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100FUEGOS said:
That it is not Split Face, that is called biphase. Those two 120 volts legs are 180 degrees apart so between the two you have 240 VAC.
Click to expand...
:unsure: As opposed to Split Phase which is 180 deg apart???
Neutral and Ground are not the same thing. Notice the Two Wires coming from the Sol-Ark 15K in post #122 that are coming from inside the Inverter onto the Neutral Busbar.
 
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koppted said:
I think in one of his posts he points out that N becomes L2 when you switch to split phase. The question is where is the neutral now, but going back and looking at SolArk 15k it seems there is a separate neutral Bus bar right below the ground bus bar, can't seem to find that in any of his pictures although it might just be the angles he has taken those pictures at.
Click to expand...
@Hedges care to weigh in here? Wouldn't he still need an auto transformer if he wants to run 120v volt loads ?
 
themizz said:
@Hedges care to weigh in here? Wouldn't he still need an auto transformer if he wants to run 120v volt loads ?
Click to expand...
Yes of course he is and he is also going to need another one at the Input side to convert Grid power into Single Phase 240V. Assuming it is going to be connected to the Grid. If not he is still going to need another one if he plans to use a Generator.
If he wants to imitate a Sol-Ark 15K and all of it's power capabilities he will need three Transformers.
 
solark power capabilities? the only power capabilities of the solark is a 15k inverter that cost $8k and you connect 3 120v loads and shuts down, if you going to pay $8000 for an inverter like that you are just better with the schneider 6848 xw pro.
 
robby said:
Yes of course he is and he is also going to need another one at the Input side to convert Grid power into Single Phase 240V.
Click to expand...
Do what ? AC supply to the house is 240 volt single phase, just with an added center tap with the ground connected to it that we call neutral just to keep everyone amused and supposedly safer.
 
Quattrohead said:
Do what ? AC supply to the house is 240 volt single phase, just with an added center tap with the ground connected to it that we call neutral just to keep everyone amused and supposedly safer.
Click to expand...
Are you sure? From his previous posts I think he said he is in the USA which means his mains power is 240V Split Phase.
He will have to use a trasformer to combine the Spltphases into a Single Phase for the Deye to use it.
 
robby said:
Yes Split Phase 240V not Single Phase. All homes in the USA are Splt Phase and Deye Inverters are Single Phase.
Click to expand...
Robbie I am surprised you don't understand this. Think of it like your remote control that has two double a batteries together they produce the three volts that your remote needs but if you connected a wire between the two batteries you would have one and a half volts instead of the three volts. That is exactly the same as the American system. See it confuses the shit out of people.
 
Quattrohead said:
Robbie I am surprised you don't understand this. Think of it like your remote control that has two double a batteries together they produce the three volts that your remote needs but if you connected a wire between the two batteries you would have one and a half volts instead of the three volts. That is exactly the same as the American system. See it confuses the shit out of people.
Click to expand...
So he would just need to connect both L1 and L2 from his utility to the same Grid Input on the Deye?
 
Quattrohead said:
Robbie I am surprised you don't understand this. Think of it like your remote control that has two double a batteries together they produce the three volts that your remote needs but if you connected a wire between the two batteries you would have one and a half volts instead of the three volts. That is exactly the same as the American system. See it confuses the S out of people.
Click to expand...
Split Phase is two 120V RMS lines 180 deg out of phase. 240V Single Phase is one line of 240V.
Your AA battery analogy is correct for Split Phase because you have L1-N-L2 so you can tap into the middle and get 1.5V or you can test from both ends and get 3V.

For single phase it's like a dedicated 3V battery. You do not have a middle to tap into. You have L1-N which is 240Vac.
In the case of some devices like most motors or heating elements you can hook a Split phase 240V to them by hooking (L1 to L) and (L2 -N). There are several kinds of devices that you can get away with this kind of wiring but an Inverter is not one of them I would ever try it on.
 
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Lt.Dan said:
So he would just need to connect both L1 and L2 from his utility to the same Grid Input on the Deye?
Click to expand...
BTW I am not an Electrician and there is a world of difference in the knowledge base of Electrical vs Electronic Engineering.
I have had one bad experience trying this with a piece of test gear sent to us from the UK. When asked they said they will include a UPS with the system and we should hook the L1-L and L2-N and it would be fine. We did this and the UPS immediately threw an error and then the UPS started to smoke.
I have seen it done with Motors successfully so I know where Quatrrohead is going with this.

If @Quattrohead or someone else can clarify a few things, like what would happen at the N-G bond at the panel box considering that the N is now Hot at the Inverter, so I can learn something new. If it could work would that mean the Inverter is not grounded back to the Panel box and just left floating? Have any users on here ever tried this?
I have never seen Will P. attempt to hook the Grid into a 240V Inverter. I cannot find anything electrical on this subject, just transformers on the output for off grid installs.
Any real world info would be great.
 
It seems the unit the OP has can be run 240 single phase or 120 split phase, whether it by design or with a software snafu we're not quite sure yet.
So with our crazy USA split phase system if you completely forget about the neutral and ground you just have a straight up 240 volt AC supply that is fully floating isolated from ground and that is how our 240 volt appliances are running. (We do connect a ground to the chassis for shock protection, nothing more. Well except for stoves and clothes dryers where you need some 120 volt but that's a whole another complication) However this is not the same as 240 volt supply in the rest of the world where one end is grounded and hence becomes the neutral side and it is not in any way fully isolated or floating.
We are getting ourselves in a right pickle because our system is weird and the Chinese are building equipment that will run anywhere in the world and whilst it electrically will run just fine, satisfying code etc is very difficult indeed.
Flicking the switch and saying "oh look it works" is easy, making it safe is not.
 
I have a SunnyBoy 2500U 240VAC inverter here. The line connections are made like this:
L1 -> L inverter
L2 -> N label on inverter but manual says to connect L2 to N labeled connector
Gnd -> Gnd on inverter.

This inverter does not need a neutral.
 
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